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How SID is different from Service name in Oracle tnsnames.ora
...me = alias to an INSTANCE (or many instances). The main purpose of this is if you are running a cluster, the client can say "connect me to SALES.acme.com", the DBA can on the fly change the number of instances which are available to SALES.acme.com requests, or even move SALES.acme.com to a completel...
Python SQL query string formatting
...String Literal Concatenation (http://docs.python.org/), which could be qualified a somewhere between Option 2 and Option 4
Code Sample:
sql = ("SELECT field1, field2, field3, field4 "
"FROM table "
"WHERE condition1=1 "
"AND condition2=2;")
Works as well with f-strings:
fie...
How to know when UITableView did scroll to bottom in iPhone
...ar the bottom of the screen, and then using the indexPath it returns check if that indexPath is the last row then if it is, add rows.
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Adding rounded corner and drop shadow to UICollectionViewCell
...ts on adding 2nd view for adding shadow, but I still cannot get it to work if I want to add it in UICollectionViewCell . I subclassed UICollectionViewCell , and here is my code where I add various UI elements to the cell's content view and adding shadow to the layer:
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MySQL Cannot Add Foreign Key Constraint
... database as a project requirement and it worked the first time or two on different tables, but I have two tables on which I get an error when trying to add the Foreign Key Constraints.
The error message that I get is:
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Get list of all tables in Oracle?
... is assuming that you have access to the DBA_TABLES data dictionary view. If you do not have those privileges but need them, you can request that the DBA explicitly grants you privileges on that table, or, that the DBA grants you the SELECT ANY DICTIONARY privilege or the SELECT_CATALOG_ROLE role (...
WCF - How to Increase Message Size Quota
...int configuration e.g.
...
bindingConfiguration="basicHttp"
...
The justification for the values is simple, they are sufficiently large to accommodate most messages. You can tune that number to fit your needs. The low default value is basically there to prevent DOS type attacks. Making it 2000000...
Android Studio Google JAR file causing GC overhead limit exceeded error
...your build.gradle file:
dexOptions {
javaMaxHeapSize "4g"
}
and see if that helps.
(idea courtesy of this answer from Scott Barta)
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How do I create a new Swift project without using Storyboards?
...ect in XCode 6 doesn't allow to disable Storyboards. You can only select Swift or Objective-C and to use or not Core Data.
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How to check whether a string is a valid HTTP URL?
...ut uriResult)
&& uriResult.Scheme == Uri.UriSchemeHttp;
Or, if you want to accept both HTTP and HTTPS URLs as valid (per J0e3gan's comment):
Uri uriResult;
bool result = Uri.TryCreate(uriName, UriKind.Absolute, out uriResult)
&& (uriResult.Scheme == Uri.UriSchemeHttp || ...